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This AT4 commands attention with its carefully curated features designed for both work and premium driving experiences:
- EcoTec3 6.2L V8 engine with 420 hp and 460 lb-ft of torque
- Dual Sport-Mode Active Exhaust with Dynamic Fuel Management
- Power Sunroof
- 20" Machined Aluminum wheels with Carbon Grey Metallic accents
- Technology Package with Rear Camera Mirror and 15" Multicolor Head-Up Display
- Premium Bose 7-Speaker Sound System with SiriusXM 360L
- Spray-On Pickup Bedliner with AT4 Logo
- Off-Road High Clearance Steps
- Heated and ventilated front seats with power adjustment
- Rear Camera Mirror and Bed View Camera
- HD Surround Vision with Ultrasonic Front & Rear Park Assist
- Navigation System with Apple CarPlay and Android Auto
- Wireless Charging and multiple USB ports
- Integrated Trailer Brake Controller with Hitch Guidance and Hitch View
- All-terrain 4WD with auto-locking rear differential and Hill Descent Control
The AT4 Premium Package elevates your experience with refined appointments and off-road-ready components that prove capability doesn't require compromise. The 10-speed automatic transmission delivers responsive power across all driving conditions, while the 4WD system provides confidence whether you're navigating city streets or venturing off the beaten path. At 14 city and 17 highway mpg, this truck balances its V8 performance with reasonable fuel efficiency.
Inside, the crew cab surrounds you with premium materials and intuitive technology. Heated and ventilated front seats adapt to the season, while the power-adjustable steering column and memory seating accommodate your preferences. The 15" head-up display keeps critical information in your line of sight, and the integrated navigation system guides you efficiently to your destination.
The bed is equipped with thoughtful features including a 120-volt power outlet for jobsite tools and a spray-on bedliner that protects your cargo investment. The integrated trailering system provides comprehensive information about your trailer, with multiple camera views and the in-vehicle app making towing straightforward and safe.
This Sierra AT4 represents the full expression of what a modern premium truck can deliverâ"substantial power, genuine off-road capability, and the technology and comfort expected in today's premium segment. With all these capabilities and features combined, this is a truck ready for whatever you ask of it.










